Disposal medical negative pressure gas joint backflow prevention device
A backflow prevention device, a one-time technology, applied in the direction of valves, suction devices, etc., can solve the problems that have not yet been seen, and achieve the effect of reducing the number of equipment maintenance, improving the service life, and ensuring smooth flow.
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[0021] Below, the present invention will be further described in detail in conjunction with the accompanying drawings and embodiments.
[0022] A disposable medical negative pressure gas connector anti-backflow device of the present invention, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 As shown, it has a structure, an anti-backflow device that can close the suction nozzle in time to prevent the liquid in the liquid collection bottle 9 from entering and the negative pressure gas backflow is added between the negative pressure gas joint 4 and the liquid collection bottle 9 6. The cooperation relationship between the anti-backflow device 6 and the negative pressure gas connector 4 and the liquid collection bottle 9 is realized through the connection and combination of the quick plug 5 and the connecting pipe 7 .
[0023] Its structure is: it includes a negative pressure gas connector 4, a liquid collection bottle 9, and also includes a backfl...
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